An {Fe-16} barrel: Synthesis, structural and magnetic characterisation of an {Fe-8} ring and its dimer

作者：Casson Ian; Muryn Christopher A; Tuna Floriana; Schnack Juergen^*; Winpenny Richard E P

来源：Polyhedron, 2013, 64: 59-62.

DOI：10.1016/j.poly.2013.02.028

• Iron
• Molecular magnetism
• Rings

The synthesis, structure and magnetic properties of an octametallic iron(III) ring is reported. Alternate edges of the ring are bridged by a hydroxide and two pivalates, or by one pivalate and two phenoxides. By addition of biphenol to the reaction a hexadecametallic iron(III) cage can be made where the 16 metals are arranged in two linked {Fe-8} rings. The rings are staggered with respect to one another, and lie on the vertices of an octagonal anti-prism. Magnetic studies on the octametallic ring allows exchange parameters to be obtained. Similar studies on the {Fe-16} barrel shows the exchange interactions within the rings to be similar, with a significant paramagnetic impurity present.

• 出版日期2013-11-12